Template:Userboxtop/styles.css

@media (min-width: 601px) {
	#userboxes {
		float: right;
		margin-left: 1em;
		clear: right;
	}
}
@media (max-width: 600px) {
	#userboxes {
		margin-left: auto;
		margin-right: auto;
		clear: both;
		float: none;
	}
}